package main


import (
"fmt"
"io/ioutil"
"bytes"
"os"
"bufio"
)


func main(){
   
   p := new(bytes.Buffer)
   q,_:=ioutil.ReadFile("jiang.txt")
   p.Write(q)
   m :=   bufio.NewReader(p)
   ioutil.WriteFile("/tmp/jiang.txt",q,os.ModePerm)


   fmt.Println("ok",p.String())
   n,_,_:=  m.ReadLine()

   fmt.Println(string(n))

}
